id: 06041375
dt: j
an: 06041375
au: Zhang, Ming; Tang, Zhenmin; Yang, Xibei
ti: Negative decision rules and knowledge reduction in incomplete information
    systems.
so: Control Decis. 26, No. 6, 851-856 (2011).
py: 2011
pu: Editorial Office of Control and Decision, Northeastern University, Shenyang
la: ZH
cc: 
ut: negative decision rule; descriptor; rough sets; reduction
ci: 
li: 
ab: Summary: The aim of this paper is to derive negative rules from incomplete
    decision information systems. The concept of negative support set of
    descriptors is proposed. Lower and upper approximations based on such
    negative support sets are presented and their properties are discussed.
    Moreover, an approach to acquire certain and credible negative rules by
    the proposed lower and upper approximate is presented. To facilitate
    application, an approach using a discernibility matrix is proposed to
    obtain a reduction, and illustrative examples show the effectiveness of
    the approach.
rv: